HealthcareProton TherapyactiveVerified

Southwest Florida Proton

A C. NETHERO, ESQ., Registered Agent

Southwest Florida Proton is a proton beam therapy treatment center, the first on Florida's Gulf Coast, located in Fort Myers. The LLC PROTON FUSION, LLC is likely the corporate entity, with a principal address in Fort Myers matching the center's city.

Filed January 13, 2023 · Fort Myers, FL · Lee County

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Source

Florida Division of Corporations (Sunbiz) · Entity L23000016709 · Retrieved May 5, 2026

Search the registry for L23000016709 ›JSON record ›

About Southwest Florida Proton

Proton Fusion, LLC filed in Florida on January 13, 2023, as an active Healthcare company in the Proton Therapy subcategory, based in Fort Myers (Indian River County). The owner/officer, A C. Nethero, Esq., filed personally as the registered agent. The company’s domain was registered on November 9, 2021, 430 days before filing, through GoDaddy. The website matches the filing name and address, and we estimate revenue between $10 million and $50 million with 26 to 100 employees. Two other entities share the same address. No annual report or EIN is on file yet.

  • Domain registered 430 days before the Florida filing, indicating early planning.
  • Owner/officer filed personally as the registered agent.
  • Website identity confirmed to match the filing name and address.
  • We estimate revenue of $10M-$50M and 26-100 employees.
  • Two other entities share the same address.
  • No annual report or EIN on file yet.

Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 24, 2026.

One of 70 new businesses registered in Fort Myers in January 2023, one of 3 healthcare businesses.

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Filing Details

Entity NamePROTON FUSION, LLC
Entity TypeFLAL
Entity NumberL23000016709
Filing DateJanuary 13, 2023
Principal AddressLocked
City / State / ZipFort Myers, FL 33912
CountyLee
TimezoneEastern (ET)
EIN on FileNo
Registered AgentA C. NETHERO, ESQ.
Agent AddressLocked
Filed ViaSelf-filed (owner is the registered agent)
WebsiteYes · domain registered 430 days before filing · registrar GoDaddy
Website BuildModern · settings: css_print_method-external, google_font-enabled, font_display-auto
Annual ReportNot yet filed
Estimated Revenue$10M-$50M (estimate)
Estimated Employees26-100 (estimate)
FootprintBrick and mortar (estimate)
Related Filings2 at the same address
First Recorded by DayOneLeadMay 5, 2026 (1208 days after filing)

Verified Business Profile

SubcategoryProton Therapy

Contact Information

WebsiteLocked
PhoneLocked
EmailLocked
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Verified Website Profile

We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.

Domain RegisteredLocked
Domain AgeLocked
RegistrarLocked
Website PlatformLocked
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Frequently Asked Questions

When was Southwest Florida Proton registered?

Southwest Florida Proton was registered as FLAL on January 13, 2023 in Florida.

Where is Southwest Florida Proton located?

Southwest Florida Proton is based in Fort Myers, FL, 33912, in Lee County.

What type of business is Southwest Florida Proton?

Southwest Florida Proton is classified as a healthcare business (proton therapy).

Is Southwest Florida Proton still active?

According to the Florida Division of Corporations, Southwest Florida Proton's current record status is "active".

Does Southwest Florida Proton have an EIN on file?

No EIN was found on file for Southwest Florida Proton at the time of registration.

Who Sells to This Business

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